期刊
THEORETICAL AND APPLIED MECHANICS LETTERS
卷 11, 期 2, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.taml.2021.100240
关键词
Laser-induced porous graphene; Polyimide (PI)/PDMS composite; kirigami-inspired strain sensor
类别
资金
- National Natural Science Foundation of China [12072030]
The study explores the application of laser-induced porous graphene in stretchable strain sensors, achieving high stretchability and good mechanical properties. The LIG formed on a polyimide/polydimethylsiloxane composite demonstrates tunable electronic performance without the need for transfer printing.
The laser-induced porous graphene (LIG) prepared in a straightforward fabrication method is presented, and its applications in stretchable strain sensors to detect the applied strain are also explored. The LIG formed on the polyimide/polydimethylsiloxane (PI/PDMS) composite exhibits a naturally high stretchability (over 30%), bypassing the transfer printing process compared to the one prepared by laser scribing on PI films. The PI/PDMS composite with LIG shows tunable mechanical and electronic performances with different PI particle concentrations in PDMS. The good cyclic stability and almost linear response of the prepared LIG's resistance with respect to tensile strain provide its access to wearable electronics. To improve the PDMS/PI composite stretchability, we designed and optimized a kirigami-inspired strain sensor with LIG on the top surface, dramatically increasing the maximum strain value that in linear response to applied strain from 3% to 79%. (C) 2021 Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.
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